PCB npo luam ntawv yog qhov txuas tseem ceeb hauv cov txheej txheem tsim khoom PCB, yog li, dab tsi yog qhov txhaum ntawm PCB board screen printing?
1, Qhov screen theem ntawm qhov txhaum
1), ntsaws qhov
Cov laj thawj rau qhov xwm txheej no yog: cov ntaub ntawv luam ntawv qhuav sai heev, hauv qhov screen version qhuav qhov, luam ntawv nrawm dhau, lub zog scraper siab dhau.Kev daws teeb meem, yuav tsum siv cov khoom siv hluav taws xob qeeb qeeb qeeb, nrog cov ntaub mos muag dipped hauv cov kuab tshuaj organic maj mam ntxuav lub vijtsam.
2), screen version number case to
Qhov ua rau ntawm qhov tsis ua hauj lwm no yog: PCB board nto los yog cov khoom siv luam ntawv hauv plua plav, av, tshuaj ntsuam luam ntawv phaj phaj puas;Tsis tas li ntawd, thaum luam ntawv phaj ua, lub ntsej muag daim npog qhov ncauj qhov ncauj tsis txaus, ua rau lub ntsej muag lub ntsej muag qhuav tsis tiav, ua rau tus number case to.Txoj kev daws teeb meem yog siv daim kab xev los yog daim kab xev los lo rau ntawm qhov me me puag ncig ntawm lub vijtsam, lossis kho nws nrog cov kua nplaum ntawm lub vijtsam.
3), kev puas tsuaj ntawm lub vijtsam thiab txo qhov tseeb
Txawm hais tias qhov zoo ntawm lub vijtsam yog qhov zoo heev, tom qab siv lub sijhawm ntev, vim qhov kev puas tsuaj ntawm cov phaj scraping thiab luam ntawv puas, nws cov precision yuav maj mam txo lossis puas.Kev pabcuam lub neej ntawm lub vijtsam tam sim ntawd ntev dua li ntawm qhov screen tsis ncaj, feem ntau hais lus, qhov loj ntawm qhov screen tam sim ntawd.
4), luam ntawv siab los ntawm qhov txhaum
Scraper siab loj heev, tsis tsuas yog yuav ua rau cov ntaub ntawv luam tawm los ntawm ntau qhov ntau, ua rau scraper dabtsi yog khoov deformation, tab sis yuav ua rau cov ntaub ntawv luam tawm los ntawm tsawg dua, tsis tuaj yeem tshuaj ntsuam luam tawm cov duab meej, yuav ua rau muaj kev puas tsuaj ntxiv thiab lub ntsej muag lub ntsej muag. , hlau mesh ntev, duab deformation
2, PCB luam ntawv txheej tshwm sim los ntawm qhov txhaum
1), ntsaws qhov
Cov ntaub ntawv luam tawm ntawm lub vijtsam yuav thaiv ib feem ntawm lub vijtsam mesh, ua rau ib feem ntawm cov ntaub ntawv luam tawm los ntawm tsawg dua los tsis yog tag nrho, ua rau cov khoom ntim tsis zoo.Txoj kev daws teeb meem yuav tsum tau ua tib zoo ntxuav lub vijtsam.
2), PCB board rov qab yog cov khoom siv luam ntawv qias neeg
Vim tias cov ntawv luam tawm polyurethane txheej ntawm lub rooj tsavxwm PCB tsis qhuav tag, lub rooj tsavxwm PCB tau muab tso ua ke, ua rau cov khoom luam ntawv lo rau sab nraum qab ntawm PCB lub rooj tsavxwm, ua rau muaj av.
3).Tsis zoo adhesion
Cov kev daws teeb meem yav dhau los ntawm PCB pawg thawj coj saib ua rau muaj kev phom sij heev rau kev sib koom ua ke compressive zog, ua rau kev sib raug zoo tsis zoo;Los yog cov khoom siv luam ntawv tsis sib haum nrog cov txheej txheem luam ntawv, ua rau tsis zoo adhesion.
4), cov ceg
Muaj ntau ntau qhov laj thawj rau adhesion: vim tias cov khoom siv luam ntawv los ntawm kev ua haujlwm siab thiab kub kub raug mob los ntawm adhesion;Los yog vim yog kev hloov pauv ntawm cov qauv luam ntawv, cov khoom siv luam ntawv yog tuab heev ua rau cov nplaum nplaum.
5).Koob qhov muag thiab bubbling
Pinhole teeb meem yog ib qho tseem ceeb tshaj plaws ntawm cov khoom soj ntsuam hauv kev tswj kom zoo.
Cov laj thawj ntawm pinhole yog:
ib.Plua plav thiab av ntawm qhov screen ua rau pinhole;
b.PCB board nto yog qias neeg los ntawm ib puag ncig;
c.Muaj npuas nyob rau hauv cov khoom siv luam ntawv.
Yog li ntawd, ua tib zoo tshuaj xyuas ntawm qhov screen, pom tias lub qhov muag ntawm rab koob tam sim ntawd kho.
